dear collegues

we design a dynamic compaction (heavy tamping) of a 10 m' rock fill, mainly composed of soft rocks excaveted materials.

we are looking for approval methods to define the difference in density between the intial and final stage of compaction.

SPT, CPT, etc. are not valid methods since the fill contain stones and hard materials which false the results and damage the test equipments.

Is anybody have a good advise.

thanks in advance

ron